Development of a MASH TL-3 median barrier gate Page: I
This report is part of the collection entitled: Texas State Publications and was provided to The Portal to Texas History by the UNT Libraries Government Documents Department.
- Highlighting
- Highlighting On/Off
- Color:
- Adjust Image
- Rotate Left
- Rotate Right
- Brightness, Contrast, etc. (Experimental)
- Cropping Tool
- Download Sizes
- Preview all sizes/dimensions or...
- Download Thumbnail
- Download Small
- Download Medium
- Download Large
- High Resolution Files
- IIIF Image JSON
- IIIF Image URL
- Accessibility
- View Extracted Text
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
Technical Report Documentation Page
1. Report No. 2. Government Accession No. 3. Recipient's Catalog No.
FHWA/TX- 11/9-1002-2
4. Title and Subtitle 5. Report Date
DEVELOPMENT OF A MASH TL-3 MEDIAN BARRIER GATE February 2011
Published June 2011
6. Performing Organization Code
7. Author(s) 8. Performing Organization Report No.
Roger P. Bligh, Dusty R. Arrington, Nauman M. Sheikh, Test Report 9-1002-2
Chiara Silvestri, and Wanda L. Menges
9. Performing Organization Name and Address 10. Work Unit No. (TRAIS)
Texas Transportation Institute Proving Ground
The Texas A&M University System 11. Contract or Grant No.
College Station, Texas 77843-3135 Project 9-1002
12. Sponsoring Agency Name and Address 13. Type of Report and Period Covered
Texas Department of Transportation Technical/Test Report:
Research and Technology Implementation Office September 2008-August 2010
P.O. Box 5080 14. Sponsoring Agency Code
Austin, Texas 78763-5080
15. Supplementary Notes
Project performed in cooperation with the Texas Department of Transportation and the Federal Highway
Administration.
Project Title: Roadside Safety Device Crash Testing Program
URL: http://tti.tamu.edu/documents/9-1002-2.pdf
16. Abstract
Median barriers are commonly used to separate opposing lanes of traffic on divided highways and to
separate managed lanes from general purpose lanes. Concrete median barriers (CMBs) are often preferred
on urban freeways with narrow medians due to their minimal deflection and low maintenance. However,
long, continuous runs of CMBs limit access of emergency and maintenance vehicles to the other side of a
roadway or a managed lane. Implementation of crashworthy median barrier gates at these locations can
maintain the desired level of median protection for motorists while offering improved cross-median access
for emergency and/or maintenance vehicles.
A new median barrier gate was developed and crash tested under this project. The gate spans a 30-ft
opening in a concrete median barrier and consists of two vertically stacked 12-inch x 12-inch x '4-inch steel
tubes connected to steel end brackets with 21/4-inch diameter steel pins.
The gate is economical to fabricate and install. It can be manually operated by a single person and is
designed to accommodate reversible traffic flow on both sides of the median and be operable in both
directions on each end. The median barrier gate satisfies MASH Test Level 3 (TL-3) impact performance
criteria and is considered suitable for implementation on Texas highways where cross-median access is
desired.
17. Key Words 18. Distribution Statement
Median Barrier, Gate, Roadside Safety, Crash Test, No restrictions. This document is available to the
MASH public through NTIS:
National Technical Information Service
Springfield, Virginia 22161http://www.ntis.gov
19. Security Classif.(of this report) 20. Security Classif.(of this page) 21. No. of Pages 22. Price
Unclassified Unclassified 170Form DOT F 1700.7 (8-72)
Reproduction of completed page authorized
Upcoming Pages
Here’s what’s next.
Search Inside
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Matching Search Results
View two pages within this report that match your search.Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
Bligh, Roger P.; Arrington, Dusty R.; Sheikh, Nauman Mansoor; Silvestri, Chiara & Menges, Wanda L. Development of a MASH TL-3 median barrier gate, report, February 2011; College Station, Texas. (https://texashistory.unt.edu/ark:/67531/metapth326619/m1/3/?q=%222008~%22: accessed August 15, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.